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Using graphs to model irregular information domains is an effective approach to deal with some of the intricacies of contemporary (network) data. A key aspect is how the data, represented as graph signals, depend on the topology of the…

信号处理 · 电气工程与系统科学 2023-05-02 Fernando J. Iglesias Garcia , Santiago Segarra , Antonio G. Marques

In this paper, we study the graph classification problem from the graph homomorphism perspective. We consider the homomorphisms from $F$ to $G$, where $G$ is a graph of interest (e.g. molecules or social networks) and $F$ belongs to some…

机器学习 · 计算机科学 2020-07-03 Hoang NT , Takanori Maehara

In the recent years, several polynomial algorithms of a dynamical nature have been proposed to address the graph isomorphism problem. In this paper we propose a generalization of an approach exposed in cond-mat/0209112 and find that this…

计算复杂性 · 计算机科学 2007-05-23 Marats Golovkins

The chromatic polynomial is characterized as the unique polynomial invariant of graphs, compatible with two interacting bialgebras structures: the first coproduct is given by partitions of vertices into two parts, the second one by a…

环与代数 · 数学 2021-05-05 Loïc Foissy

We introduce Permutation and Structured Perturbation Inference (PSPI), a new problem formulation that abstracts many graph matching tasks that arise in systems biology. PSPI can be viewed as a robust formulation of the permutation inference…

人工智能 · 计算机科学 2021-04-05 Raghvendra Mall , Shameem A. Parambath , Han Yufei , Ting Yu , Sanjay Chawla

An invariant for cospectral graphs is a property shared by all cospectral graphs. In this paper, we establish three novel arithmetic invariants for cospectral graphs, revealing deep connections between spectral properties and combinatorial…

组合数学 · 数学 2025-04-15 Yizhe Ji , Quanyu Tang , Wei Wang , Hao Zhang

This paper introduces a new graph construction, the permutational power of a graph, whose adjacency matrix is obtained by the composition of a permutation matrix with the adjacency matrix of the graph. It is shown that this construction…

组合数学 · 数学 2019-10-29 Matteo Cavaleri , Daniele D'Angeli , Alfredo Donno

Graph symmetries intervene in diverse applications, from enumeration, to graph structure compression, to the discovery of graph dynamics (e.g., node arrival order inference). Whereas Erd\H{o}s-R\'enyi graphs are typically asymmetric, real…

概率论 · 数学 2018-12-27 Tomasz Luczak , Abram Magner , Wojciech Szpankowski

An explicit algorithm is presented for testing whether two non-directed graphs are isomorphic or not. It is shown that for a graph of n vertices, the number of n independent operations needed for the test is polynomial in n. A proof that…

数据结构与算法 · 计算机科学 2007-05-23 Moshe Schwartz

Recently, there has been great success in applying deep neural networks on graph structured data. Most work, however, focuses on either node- or graph-level supervised learning, such as node, link or graph classification or node-level…

机器学习 · 计算机科学 2021-12-15 Robin Winter , Frank Noé , Djork-Arné Clevert

In this paper, we propose a new type of graph, denoted as "embedded-graph", and its theory, which employs a distributed representation to describe the relations on the graph edges. Embedded-graphs can express linguistic and complicated…

离散数学 · 计算机科学 2017-09-15 Atsushi Yokoyama

It is challenging for generative models to learn a distribution over graphs because of the lack of permutation invariance: nodes may be ordered arbitrarily across graphs, and standard graph alignment is combinatorial and notoriously…

社会与信息网络 · 计算机科学 2023-01-27 Kimia Shayestehfard , Dana Brooks , Stratis Ioannidis

We prove two estimates for the expectation of the exponential of a complex function of a random permutation or subset. Using this theory, we find asymptotic expressions for the expected number of copies and induced copies of a given graph…

组合数学 · 数学 2021-07-01 Catherine Greenhill , Mikhail Isaev , Brendan D. McKay

Recently, Transformer model, which has achieved great success in many artificial intelligence fields, has demonstrated its great potential in modeling graph-structured data. Till now, a great variety of Transformers has been proposed to…

Graph independence (also known as $\epsilon$-independence or $\lambda$-independence) is a mixture of classical independence and free independence corresponding to graph products or groups and operator algebras. Using conjugation by certain…

In this paper, we investigate some relations between the invariants (including vertex and edge connectivity and forwarding indices) of a graph and its Laplacian eigenvalues. In addition, we present a sufficient condition for the existence…

组合数学 · 数学 2014-07-23 Rong-Ying Pan , Jing Yan , Xiao-Dong Zhang

Graph embedding techniques are pivotal in real-world machine learning tasks that operate on graph-structured data, such as social recommendation and protein structure modeling. Embeddings are mostly performed on the node level for learning…

机器学习 · 计算机科学 2022-04-26 Nan Wang , Lu Lin , Jundong Li , Hongning Wang

In the branch of mathematics known as graph theory, graphs are considered as a set of points, called vertices, with connections between these points, called edges. The purpose of this paper is to study mappings between two graphs that have…

组合数学 · 数学 2019-03-19 Jeffrey Beyerl , Cameron Sharpe

This paper explores a particular statistical model on 6-valent graphs with special properties which turns out to be invariant with respect to certain Roseman moves if the graph is the singular point graph of a diagram of a 2-knot. The…

数学物理 · 物理学 2015-10-13 I. G. Korepanov , G. I. Sharygin , D. V. Talalaev

In this paper, we study the problem of unsupervised graph representation learning by harnessing the control properties of dynamical networks defined on graphs. Our approach introduces a novel framework for contrastive learning, a widely…

机器学习 · 计算机科学 2024-04-19 Obaid Ullah Ahmad , Anwar Said , Mudassir Shabbir , Waseem Abbas , Xenofon Koutsoukos